
@import url("title.css");
.banner-wrapper{
  background-color: red;
  box-sizing: border-box;
  height: 8px;
  width: 268px;
  
}

.banner{
  position: absolute;
  left: 0;
  top: 0;
  height: 250px;
  width: 100vw;
  background-color: aquamarine;
  mask-image: linear-gradient(to bottom,rgb(15, 4, 4) 50%,transparent);
  overflow: hidden;
}

.banner-img{
  height: 100%;
  width: 100%;
  background-color: black;
  object-fit: cover;  /** 图片自适应*/
}



